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The time needed to cook a ten-pound turkey follows a normal distribution. A random sample of 19 ten pound turkeys led to a mean cooking

The time needed to cook a ten-pound turkey follows a normal distribution. A random sample of 19 ten pound turkeys led to a mean cooking time of 2.7 hours with a standard deviation of 0.25 hours. Find a 90 percent confidence interval for the true mean cooking time for a ten-pound turkey

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